Tungsten copper alloy is a pseudo-alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the material is composed of distinct particles of one metal dispersed in a matrix of the other one.

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About Tungsten Copper Alloy
Tungsten copper alloy is a pseudo-alloy of copper and tungsten. As copper and tungsten are not mutually soluble, the material is composed of distinct particles of one metal dispersed in a matrix of the other one. The alloy combines the properties of both metals, resulting in a material that is heat-resistant, ablation-resistant, high thermal and electrical conductivity, and easy to machine. Parts are made from the WCu alloy by pressing the tungsten particles into a desired shape, sintering the compacted part, and then infiltrating with molten copper. Sheets, rods, and bars of the alloy are available as well.

Main Composite and Properties

Type	Density(g/cm3)	Conductivity	HB(MPa)	Size(mm)
WCu50	11.9-12.3	over 55% IACS	1130-1180	Rod: Ø1~50 Length<300 Sheet: Width<190 Length<300 Special type:Width<190 Length<300
WCu40	12.8-13.0	over 47% IACS	over 1375
WCu30	13.8-14.4	over 42% IACS	over 1720
WCu20	15.2-15.6	over 34% IACS	over 2160
WCu10	16.8-17.2	over 27% IACS	over 2550
WCu7	17.3-17.8	over 26% IACS	over 2900

Tungsten copper parts provided by us are all with these properties. The electrical and thermal properties of the alloy vary with different proportions. Copper increases the thermal conductivity, which plays a considerable part when being used in circuit breakers. Electrical resistivity with an increase in the percentage of tungsten present in the alloy, ranging from 3.16 at 55% tungsten to 6.1 when the alloy contains 90% tungsten. An increase in tungsten leads to an increase in ultimate tensile strength until the alloy reaches 80% tungsten and 20% copper with a maximum tensile strength of 663 MPa. After this mixture of copper and tungsten, the ultimate tensile strength decreases reasonably rapidly.

Produce Process
Part of the mixed powder sintering process copper infiltration method generally has the following two: tungsten copper plates imageCu powder and 0.5% to 2.5% additives (typically nickel powder) - press molding - sintering - copper infiltration. The process is simple; this method is suitable for manufacturing Cu> 20% tungsten-copper composite. Various approaches to the production of tungsten copper materials, copper distribution along the tungsten grain boundaries, the tungsten skeleton strength is not as good as the high-temperature sintering method, as this method asks too much of raw materials, ingredients, or the product will contain more impurities and gases. BW powder - +2.5% Cu powder + static acid - was added to the appropriate melt composite adhesive agent (including 35% polypropylene, 60% paraffin wax, 5% satiric acid) - the cooling granulation injection form - binder removal - heptanes - 3C% / min heating to 500C, 10C/min heating to 900C - transferred to the high-temperature sintering furnace cooling - heating 10C/min to 1030C - to 10C/min heated to 1200-16200C Melting leaching - cooled to room temperature. The manufacturing process of tungsten copper plates is according to these steps, which own properties of tungsten and copper.

Application of tungsten copper alloy
Tungsten copper alloy is used in a product or part that requires high heat resistance, low thermal expansion, and high electrical or thermal conductivity. Tungsten copper is used to fabricate engines and electrical devices. It is also used in the fields of aviation and spaceflight. Electrodes, refractory parts, heat sinks, rocket parts, and electrical contacts are all made of copper tungsten alloy. The alloy is also made into sheet metal, tubing, and plate metal. Copper tungsten alloy is used to make contacts for both high and medium-voltage electrical devices and high-speed steel devices and switches.

WCu rods have been widely used in Spark Erosion and Electrical Discharge Machining (EDM) processes. In general, this process is used with graphite, but tungsten has a high melting point. This allows the CuW electrodes to have a longer service life than the graphite electrodes. This is crucial when the electrodes have been processed with complex machining. Since the electrodes are susceptible to wear, the electrodes provide more geometrical accuracy than the other electrodes. These properties also let the rods and tubes manufactured for spark erosion be smaller in diameter and longer in length since the material is less likely to chip and warp.

High-quality tungsten copper alloy supplier
TRUNNANO is a trusted global chemical materials supplier and manufacturer with over 12 years of experience in ultra-high quality nanomaterials and chemicals. The company develops a variety of powder materials and chemicals. Provide OEM services. If you are looking for silicon carbide powder, please contact us. You can click on the product to contact us.